Infinitrack Harvester (Secret Rare)

If this card is Normal or Special Summoned: You can add 1 "Infinitrack" monster from your Deck to your hand, except "Infinitrack Harvester". You can target 1 other Machine monster you control; the Levels of both that monster and this card become the combined original Levels of those 2 monsters, until the end of this turn. You can only use each effect of "Infinitrack Harvester" once per turn.